<template>
  <!-- 注册页面的整体盒子 -->
  <div class="reg-container">
    <!-- 注册的盒子 -->
    <div class="reg-box">
      <!-- 标题的盒子 -->
      <div class="title-box"></div>
      <!-- 注册的表单区域 -->
      <el-form ref="regForm" :rules="regRules" :model="regForm" class="el-regForm">
        <el-form-item prop="username">
            <el-input v-model="regForm.username" placeholder="请输入用户名"></el-input>
        </el-form-item>
        <el-form-item prop="password">
            <el-input type="password" v-model="regForm.password" placeholder="请输入密码"></el-input>
        </el-form-item>
        <el-form-item prop="repassword">
            <el-input type="password" v-model="regForm.repassword" placeholder="请再次输入密码"></el-input>
        </el-form-item>
            <el-button type="primary" style="width:100%" @click="regNewUser">注册</el-button>
            <el-form-item>
            <el-link type="info" @click="$router.push('/login')">去登录</el-link>
            </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  name: 'Reg',
  data () {
    const checkPassword = (rule, val, callback) => {
      if (val === this.regForm.password) {
        callback()
      } else {
        callback(new Error('两次密码输入不一致！'))
      }
    }
    return {
      regForm: {
        username: '',
        password: '',
        repassword: ''
      },
      regRules: {
        username: [
          { required: true, message: '用户名不能为空！', trigger: 'blur' },
          { pattern: /^[a-zA-Z][0-9a-zA-Z]{0,9}$/, message: '请输入1-10位的非空字符串，以字母开头！', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '密码不能为空！', trigger: 'blur' },
          { min: 6, max: 15, message: '密码长度6~15位之间！', trigger: 'blur' }
        ],
        repassword: [
          { required: true, message: '密码不能为空！', trigger: 'blur' },
          { validator: checkPassword, trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    regNewUser () {
      this.$refs.regForm.validate(async valid => {
        if (!valid) return
        // 发送ajax请求
        const { data: res } = await this.$http.post('/api/reg', this.regForm)
        if (res.code !== 0) return
        this.$router.push('/login')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.reg-container {
  background: url('../../assets/images/login_bg.jpg') center;
  background-size: cover;
  height: 100%;

  .reg-box {
    width: 400px;
    height: 335px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

    .title-box {
      height: 60px;
      background: url('../../assets/images/login_title.png') center no-repeat;
    }
  }
  .el-regForm{
      padding: 0 30px;
  }
}
</style>
